Upgrading processor for HD playback?
#16
Information 
6Str1ngKng Wrote:yeah, because everyone has a 6.60GHz processors, lolz
No, but you can buy a dual-core 3Ghz and quad-core 2Ghz processors Wink

...and modern processors also have larger and faster level-2 cache but more importantly they also feature highly optimized Streaming SIMD Extensions (SSE) which are really good performance enhancements for video decoding, that only get better with each generation.

CPU clock cycles are not eveything and both CPU manufactures and video decoder programmers/developers realize this. Read this article:
http://en.wikipedia.org/wiki/Megahertz_myth
Quote:The megahertz myth, or less commonly the gigahertz myth, refers to the error of using clock rate to compare the performance of different microprocessors. While clock rates are a valid way of comparing the performance of different speeds of the same model and type of processor, other factors such as pipelines and instruction sets can greatly affect the performance when considering different processors. For example, one processor may take one clock cycle to add two numbers and another clock cycle to multiply by a third number, whereas another processor may do the same calculation in one clock cycle. Comparisons between different types of processors are difficult because performance varies depending on the type of task....
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#17
Hi!
I know overclocking the Xbox is already talked somewhere else in the forum, but I could not found an answer to my question.
I'm in the eminence of buying one of those 1.4Ghz Xboxes with 128Ram, my question is if I will be able to watch true 720p movies (xvid, divxHD, MKVHD, etc) without any frame drops with this setup?
Has anyone got one to try with the latest XBMC?

Thanks for all the help, any opinion of someone that has already tested it is much appreciated.

Thx in advance
#18
read this entire thread, or for the short answer: "No, build a media computer and run XBMC on Linux".
Catchy Signature Here
#19
finas & I where in the process of benchmarking several CPU configurations on the XBOX, finas is now busy with his new family & I lost most of my benchmarks & have little time lately, however attached is the last list of benchmarks we shared.

Code:
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Xbox Pentium III 733MHZ/128KB (5.5x133)
---------------------------------------

HBOHD.Trailer.1080.mpg
BENCHMARKs: VC: 145.921s VO: 35.330s A: 0.000s Sys: 29.295s = 210.547s
BENCHMARK%: VC: 69.3058% VO: 16.7803% A: 0.0000% Sys: 13.9139% = 100.0000%


MP10_Stiker_8mbps_720.wmv
BENCHMARKs: VC: 46.964s VO: 6.467s A: 0.000s Sys: 2.141s = 55.573s
BENCHMARK%: VC: 84.5093% VO: 11.6377% A: 0.0000% Sys: 3.8530% = 100.0000%


MP10_Striker_10mbps_1080.wmv
BENCHMARKs: VC: 182.865s VO: 22.318s A: 0.000s Sys: 8.069s = 213.251s
BENCHMARK%: VC: 85.7507% VO: 10.4657% A: 0.0000% Sys: 3.7836% = 100.0000%

oceans_13-tlr2a_480p.mov
BENCHMARKs: VC: 75.430s VO: 11.101s A: 0.000s Sys: 2.351s = 88.882s
BENCHMARK%: VC: 84.8652% VO: 12.4892% A: 0.0000% Sys: 2.6456% = 100.0000%

oceans_13-tlr2a_720p.mov
BENCHMARKs: VC: 179.241s VO: 15.992s A: 0.000s Sys: 4.525s = 199.757s
BENCHMARK%: VC: 89.7293% VO: 8.0055% A: 0.0000% Sys: 2.2651% = 100.0000%


oceans_13-tlr2a_1080p.mov
BENCHMARKs: VC: 422.207s VO: 10.408s A: 0.000s Sys: 7.326s = 439.941s
BENCHMARK%: VC: 95.9690% VO: 2.3658% A: 0.0000% Sys: 1.6652% = 100.0000%



--------------------------------
Xbox Pentium III M 1GHZ/256KB (7.5x133)
--------------------------------

HBOHD.Trailer.1080.mpg
BENCHMARKs: VC: 117.044s VO: 33.165s A: 0.000s Sys: 26.448s = 176.657s
BENCHMARK%: VC: 66.2548% VO: 18.7737% A: 0.0000% Sys: 14.9715% = 100.0000%

MP10_Stiker_8mbps_720.wmv
BENCHMARKs: VC: 36.930s VO: 6.073s A: 0.000s Sys: 2.289s = 45.292s
BENCHMARK%: VC: 81.5378% VO: 13.4090% A: 0.0000% Sys: 5.0531% = 100.0000%


MP10_Striker_10mbps_1080.wmv
BENCHMARKs: VC: 161.815s VO: 20.251s A: 0.000s Sys: 8.400s = 190.466s
BENCHMARK%: VC: 84.9573% VO: 10.6324% A: 0.0000% Sys: 4.4103% = 100.0000%

oceans_13-tlr2a_480p.mov
BENCHMARKs: VC: 52.267s VO: 20.280s A: 0.000s Sys: 2.853s = 75.400s
BENCHMARK%: VC: 69.3196% VO: 26.8962% A: 0.0000% Sys: 3.7842% = 100.0000%

oceans_13-tlr2a_720p.mov
BENCHMARKs: VC: 123.171s VO: 15.538s A: 0.000s Sys: 5.519s = 144.229s
BENCHMARK%: VC: 85.3999% VO: 10.7735% A: 0.0000% Sys: 3.8266% = 100.0000%

oceans_13-tlr2a_1080p.mov
BENCHMARKs: VC: 289.636s VO: 9.771s A: 0.000s Sys: 9.115s = 308.521s
BENCHMARK%: VC: 93.8787% VO: 3.1670% A: 0.0000% Sys: 2.9543% = 100.0000%



--------------------------------
Xbox Celeron 1.5GHZ/256KB ( 14x108)
--------------------------------

HBOHD.Trailer.1080.mpg
BENCHMARKs: VC: 116.919s VO: 36.619s A: 0.000s Sys: 27.031s = 180.570s
BENCHMARK%: VC: 64.7501% VO: 20.2800% A: 0.0000% Sys: 14.9699% = 100.0000%

MP10_Stiker_8mbps_720.wmv
BENCHMARKs: VC: 36.766s VO: 6.892s A: 0.000s Sys: 1.985s = 45.644s
BENCHMARK%: VC: 80.5509% VO: 15.1001% A: 0.0000% Sys: 4.3490% = 100.0000%

MP10_Striker_10mbps_1080.wmv
BENCHMARKs: VC: 182.700s VO: 24.759s A: 0.000s Sys: 6.853s = 214.313s
BENCHMARK%: VC: 85.2493% VO: 11.5529% A: 0.0000% Sys: 3.1978% = 100.0000%

oceans_13-tlr2a_480p.mov
BENCHMARKs: VC: 45.964s VO: 16.665s A: 0.000s Sys: 2.706s = 65.334s
BENCHMARK%: VC: 70.3520% VO: 25.5065% A: 0.0000% Sys: 4.1415% = 100.0000%

oceans_13-tlr2a_720p.mov
BENCHMARKs: VC: 109.470s VO: 16.308s A: 0.000s Sys: 4.645s = 130.423s
BENCHMARK%: VC: 83.9350% VO: 12.5039% A: 0.0000% Sys: 3.5611% = 100.0000%

oceans_13-tlr2a_1080p.mov
BENCHMARKs: VC: 254.784s VO: 10.775s A: 0.000s Sys: 7.571s = 273.130s
BENCHMARK%: VC: 93.2829% VO: 3.9452% A: 0.0000% Sys: 2.7719% = 100.0000%

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Upgrading processor for HD playback?0